AI Summary

Product: Selleys No More Cracks RTU Plaster Filler Brand: Selleys (a division of DuluxGroup Australia Pty Ltd) Category: Interior wall repair compound / plaster filler Primary Use: Ready-mixed filler for repairing cracks, holes, and surface imperfections in interior plaster walls and ceilings.

Quick Facts

Best For: DIY home repair and professional trade use on interior plaster surfaces in Australia and New Zealand
Key Benefit: No mixing, no water, no preparation required — apply directly from the 100g container
Form Factor: White paste
Application Method: Apply directly from container using a filling knife or flexible scraper

Common Questions This Guide Answers

Does Selleys No More Cracks require mixing before use? → No — it is ready to use straight from the container with no mixing, measuring, or water required.
Is it classified as Dangerous Goods for transport? → No — it is classified as Hazardous under Australian safety standards but is not classified as Dangerous Goods for transport by road, rail, sea, or air.
How should deep repairs be filled? → Apply in thin layers, allowing each layer to dry fully before applying the next, and dampen the substrate first to slow moisture absorption.

Product Overview

Selleys No More Cracks RTU Plaster Filler is a ready-mixed interior wall repair compound for filling cracks, holes, and surface imperfections in plaster walls and ceilings. Made by Selleys, a division of DuluxGroup Australia Pty Ltd, it's a well-established product used in both DIY and professional trade settings across Australia and New Zealand.

It comes in a 100g container as a white paste with a mild characteristic odour. The defining feature is zero preparation — no water, no mixing, nothing beyond an applicator. Open the container and apply directly to the surface. For small repair jobs where you want a clean result without a lot of setup, that simplicity is genuinely useful.

Worth being clear about what this product is designed for: it's a plaster-specific filler for interior use. Not a structural repair compound, not an exterior filler, and not suited to surfaces other than plaster. On the right surface, used correctly, it produces a smooth, paintable finish that sits flush with the surrounding wall. On the wrong surface, don't expect it to hold.

What "Ready to Use" Actually Means

The RTU in the product name stands for Ready to Use, and it's a practical description, not just marketing.

Traditional powder fillers require measuring, mixing to a precise consistency, and working within a limited pot life before the material sets. Get the ratio wrong and you affect workability and the final finish. RTU fillers skip that entirely. The paste is already at the correct consistency for application, every time you open the container.

For both professionals and first-time DIYers, this means no measuring equipment, consistent performance from first use to last, no wasted material from bad mixing, and a faster start on small jobs.

One thing to keep in mind: once opened, reseal the container properly after each use. Leave it exposed to air and the paste will dry out. This is covered in the storage section below.

Key Features and Their Practical Benefits

White paste formulation

The product comes as a white paste, which is the standard base colour for plaster and interior wall surfaces. Two practical advantages follow from this. First, you can see exactly where you've applied the filler and confirm full coverage. Second, once dry, the white finish accepts paint without needing a tinted primer or additional base coat in most standard interior applications.

No mixing required

The ready-mixed formulation removes the preparation step entirely. For trade professionals doing small touch-up repairs, no setup time. For occasional users without mixing tools, pick up the container and get straight to work.

Interior plaster application

This product is formulated specifically for plaster surfaces. Plaster is a calcium-based wall material that behaves differently from timber, concrete, or drywall (gypsum board). A filler engineered for plaster has the right adhesion properties, flexibility, and shrinkage characteristics to bond correctly and hold after drying. Using a filler not matched to the substrate risks poor adhesion, cracking at repair edges, or visible shrinkage lines after painting.

How to Use Selleys No More Cracks Plaster Filler

Surface preparation

Before applying any filler, the repair area needs to be clean, dry, and free of loose material. For cracks, use a scraper or filling knife to remove flaking plaster, dust, or debris from inside and around the crack. Loose material under the filler will prevent proper adhesion and the repair will fail over time.

For deep cracks — more than a few millimetres — dampen the surface slightly before applying the filler. This slows the rate at which the dry plaster substrate draws moisture out of the filler, preventing premature drying and shrinkage. A small step that makes a real difference to the finished result.

Application

Apply the paste directly from the container using a filling knife or flexible scraper. Press the filler firmly into the crack or hole, working it into the full depth of the repair. For shallow surface cracks, a single pass is enough. For deeper repairs, apply in thin layers and let each layer dry before applying the next. Trying to fill a deep hole in one thick application increases the risk of shrinkage cracking as the material dries.

Overfill the repair slightly. The filler shrinks marginally as it dries, and a slight overfill ensures the finished surface sits flush with the surrounding wall. Once dry, sand lightly with fine-grit sandpaper to achieve a smooth, level finish.

Drying and finishing

Drying time varies depending on the depth of the repair, ambient temperature, and humidity. Thicker applications take longer. Paint only once the filler is completely dry — painting over wet or partially dry filler causes the paint to crack or peel as the filler continues to cure beneath it.

Once dry and sanded, apply a coat of primer over the repair before painting, particularly where the surrounding wall has previously been painted. Fillers are more porous than the surrounding surface and will absorb more paint. Without primer, the repaired spot shows through the topcoat as a dull patch. Prime it and the repair disappears.

Safety Considerations and Required PPE

Selleys No More Cracks RTU Plaster Filler is classified as Hazardous under Australian safety standards, though it is not classified as Dangerous Goods for transport by road, rail, sea, or air in Australia or New Zealand. These are two separate classifications and the distinction matters.

The hazardous classification relates to safe handling during use — specifically avoiding prolonged skin contact, eye contact, and inhalation of dust generated during sanding. The non-dangerous goods classification for transport confirms the product presents no significant risk during shipping or storage under normal conditions.

Required personal protective equipment (PPE)

The manufacturer specifies the following PPE for use with this product:

PPE Item	Purpose
Safety shoes	Protection against dropped containers or tools
Overalls	Skin protection and clothing protection from paste contact
Nitrile rubber gloves	Recommended for intermittent skin contact with the paste
Safety glasses	Eye protection, particularly during application and sanding

For a household repair job, the minimum practical precautions are gloves and eye protection. The nitrile rubber glove specification is worth noting — nitrile outperforms latex in chemical resistance and suits users with latex sensitivities.

During sanding of dried filler, wear a dust mask. Sanding any dried plaster or filler generates fine dust particles, and respiratory protection is a sensible precaution even where not explicitly listed in the manufacturer's PPE requirements.

Ventilation

Work in a well-ventilated area. The product has only a mild characteristic odour, but good airflow during application and drying is sound practice for any interior repair product.

Storage and Shelf Life

Correct storage matters with a ready-mixed product. The filler is a water-based paste — leave it exposed to air and the surface will skin over, eventually drying out and making the product unusable.

After each use:

Replace the lid firmly and confirm it is fully sealed
Store the container upright in a cool, dry location away from direct sunlight and heat sources
Keep away from freezing temperatures — freezing permanently alters the consistency of water-based fillers, leaving them grainy or unusable after thawing

If a skin forms on the surface after storage, carefully remove the dried skin before use. The paste beneath remains fully usable provided the container was resealed correctly and stored under the right conditions.

Tips for Best Results

Match the tool to the job. A flexible filling knife gives better control for feathering filler edges into the surrounding wall surface. This reduces the visibility of the repair under raking light — the shallow-angle light that reveals every surface imperfection.

Sand between coats on deep repairs. For holes or cracks requiring multiple applications, lightly sand each dried layer before applying the next. This strengthens adhesion between layers and produces a flatter final surface.

Prime before painting. Even on small repairs, a spot prime over the dried filler before painting produces a consistent final appearance. Paint directly without priming and the repair shows through as a dull or flat patch.

Test on an inconspicuous area first. On older or unusual plaster surfaces, apply a small amount of filler in a hidden location to verify adhesion and compatibility before committing to the full repair.

Work in moderate temperatures. Cold temperatures slow drying and affect adhesion. High heat accelerates surface drying while the deeper filler remains wet, increasing the risk of cracking. Moderate conditions and the filler performs as it should.

References

Based on manufacturer specifications provided. (Selleys No More Cracks RTU Plaster Filler Safety Data Sheet, Reference No: SELGHSEN000431, Version 5.0, Issued 20 October 2025, DuluxGroup Australia Pty Ltd)
Selleys Official Product Range — Selleys Australia
Safe Work Australia — Hazardous Chemicals and Safety Data Sheets
Australian Dangerous Goods Code (ADG Code) — Transport of Dangerous Goods

Frequently Asked Questions

What is Selleys No More Cracks RTU Plaster Filler: A ready-mixed interior wall repair compound

What does RTU stand for: Ready to Use

Who manufactures Selleys No More Cracks: Selleys, a division of DuluxGroup Australia Pty Ltd

What size container does it come in: 100g

What colour is the product: White paste

Does it have an odour: Yes, a mild characteristic odour

Does it require mixing before use: No

Does it require water to be added: No

Does it require any special tools to mix: No

What surfaces is it designed for: Interior plaster walls and ceilings

Is it suitable for exterior use: No

Is it suitable for concrete surfaces: No

Is it suitable for timber surfaces: No

Is it suitable for drywall or gypsum board: No

What types of damage can it repair: Cracks, holes, and surface imperfections

Is it suitable for structural repairs: No

Is it suitable for deep holes in one application: No, apply in thin layers for deep repairs

Why must deep repairs be done in layers: To prevent shrinkage cracking as it dries

Should the repair area be clean before applying: Yes

Should the repair area be dry before applying: Yes

Should loose material be removed before applying: Yes

Should deep cracks be dampened before applying: Yes

Why dampen deep cracks before applying: Slows moisture absorption from the substrate

What tool should be used to apply the filler: A filling knife or flexible scraper

Should the repair be overfilled slightly: Yes

Why overfill the repair slightly: The filler shrinks marginally as it dries

Does the filler shrink as it dries: Yes, marginally

Can it be sanded after drying: Yes, with fine-grit sandpaper

Should each layer be sanded on deep repairs: Yes, before applying the next layer

Should a primer be applied before painting: Yes

Why prime before painting over the filler: Filler is more porous than surrounding painted wall

What happens if you paint without priming: The repair may appear as a dull or flat patch

Can it be painted after drying: Yes

Should you paint over wet or partially dry filler: No

What happens if you paint over wet filler: Paint may crack or peel as filler continues to cure

Does drying time vary: Yes, depending on depth, temperature, and humidity

Do thicker applications take longer to dry: Yes

Is the product classified as hazardous: Yes, under Australian safety standards

Is it classified as Dangerous Goods for transport: No

Is it safe to transport by road: Yes, not classified as Dangerous Goods

Is it safe to transport by air: Yes, not classified as Dangerous Goods

Is it safe to transport by sea: Yes, not classified as Dangerous Goods

Should skin contact be avoided: Yes, prolonged skin contact should be avoided

Should eye contact be avoided: Yes

Should inhalation of dust be avoided: Yes, especially during sanding

What gloves are recommended: Nitrile rubber gloves

Why are nitrile gloves specified over latex: Nitrile has superior chemical resistance

Are nitrile gloves suitable for latex-sensitive users: Yes

Is eye protection required: Yes, safety glasses

Are overalls recommended: Yes, for skin and clothing protection

Are safety shoes recommended: Yes

Should a dust mask be worn during sanding: Yes

Should the work area be ventilated: Yes, work in a well-ventilated area

How should the container be stored after use: Replace lid firmly and ensure fully sealed

Should the container be stored upright: Yes

Should the container be kept away from heat: Yes

Should the container be kept away from direct sunlight: Yes

Should the container be kept away from freezing temperatures: Yes

What happens if the filler freezes: Freezing permanently alters consistency

Can frozen and thawed filler still be used: No, it becomes grainy or unusable

What happens if the container is left open: The paste will skin over and dry out

Can filler be used if a skin forms on the surface: Yes, remove the skin first

Is the paste beneath the skin still usable after correct resealing: Yes

Is it suitable for DIY home repair: Yes

Is it suitable for professional trade use: Yes

Is it available in Australia: Yes

Is it available in New Zealand: Yes

What is the best tool for feathering filler edges: A flexible filling knife

Why use a flexible filling knife: For superior control when feathering edges

What lighting reveals surface imperfections after repair: Raking light (shallow-angle light)

Should the filler be tested on an inconspicuous area first on older surfaces: Yes

What temperatures are best for application: Moderate temperatures

What happens in cold temperatures during application: Drying slows and adhesion is affected

What happens in high heat during application: Surface dries too fast, increasing cracking risk

What is the safety data sheet reference number: SELGHSEN000431

What version is the safety data sheet: Version 5.0

When was the safety data sheet issued: 20 October 2025

Label Facts Summary

Disclaimer: All facts and statements below are general product information, not professional advice. Consult relevant experts for specific guidance.

Verified Label Facts

Product name: Selleys No More Cracks RTU Plaster Filler
Manufacturer: Selleys, a division of DuluxGroup Australia Pty Ltd
Container size: 100g
Form: White paste
Odour: Mild characteristic odour
Intended use: Interior plaster walls and ceilings
Application method: Ready to use — no mixing, no water, no additional preparation required
Repairs: Cracks, holes, and surface imperfections
Not suitable for: Exterior use, concrete, timber, drywall/gypsum board, structural repairs
Application tool: Filling knife or flexible scraper
Deep repairs: Apply in thin layers; dampen substrate first to slow moisture absorption
Drying: Filler shrinks marginally as it dries; overfill slightly; sand when dry with fine-grit sandpaper
Painting: Apply primer before painting; do not paint over wet or partially dry filler
Hazard classification: Classified as Hazardous under Australian safety standards
Transport classification: Not classified as Dangerous Goods for transport by road, rail, sea, or air (Australia and New Zealand)
Required PPE — safety shoes: Protection against dropped containers or tools
Required PPE — overalls: Skin and clothing protection
Required PPE — nitrile rubber gloves: Recommended for intermittent skin contact
Required PPE — safety glasses: Eye protection during application and sanding
Dust mask: Recommended during sanding of dried filler
Ventilation: Work in a well-ventilated area
Storage: Replace lid firmly after use; store upright in a cool, dry location; keep away from direct sunlight, heat sources, and freezing temperatures
Freezing: Permanently alters consistency; frozen and thawed product is not usable
Skinning: Remove surface skin before use if formed; paste beneath remains usable if container was correctly resealed
Safety Data Sheet reference: SELGHSEN000431, Version 5.0, issued 20 October 2025
Markets: Available in Australia and New Zealand

General Product Claims

Described as a "trusted solution" in DIY and professional trade settings
Positioned as the "go-to choice" for small repair jobs where professional results matter and time is short
Claims consistent, high-quality performance from first use to last
Claims no wasted material from incorrect mixing compared to powder fillers
Claims faster start time on small repair jobs versus traditional powder fillers
States the product "delivers a smooth, paintable finish that blends seamlessly with surrounding wall material"
Claims nitrile gloves outperform latex in chemical resistance
Claims a flexible filling knife gives superior control for feathering edges to reduce repair visibility under raking light
Claims priming before painting causes "the repair to disappear"
Recommends testing on an inconspicuous area first on older or unusual plaster surfaces

Selleys No More Cracks Plaster Filler - 100g 11 product guide